LINE Echo Bot with TypeScript

An example LINE bot to echo message with TypeScript. The bot is coded according to TypeScript's best practices.

Prerequisite

• Git
• Node.js version 10 and up
• Vercel Account
• LINE Developers Account for the bot

Installation

• Install all dependencies.

yarn install

• Configure all of the environment variables.

export CHANNEL_ACCESS_TOKEN=<YOUR_CHANNEL_ACCESS_TOKEN>
export CHANNEL_SECRET=<YOUR_CHANNEL_SECRET>
export PORT=<YOUR_PORT>

• Setup your webhook URL in your LINE Official Account to be in the following format. Don't forget to disable the greeting messages and auto-response messages for convenience.

https://example-url.com/webhook

• Run the application.

yarn start

Reference

• https://github.com/line/line-bot-sdk-nodejs/tree/next/examples/echo-bot-ts